Writing-machine.



E. B. Hss.

` WRITING MACHINE.

APPLICATION FILED 00T. 8, 1907.

Patented; Aug. l?, 1909,

SHEETS-SHEET 2.

di. B. HESS.

WRITING MACHINE. APPLIGATION FILED 001:8, 1907.

TL@ n y Patented. Aug. i7, 1909.

6 SHEETS-SHEET 4A 50 v I, smlmxlmHvuumlxIlluH Wir/M8853.-

@M Wg@ E. BLHESS,

WRITING MACHINE.

APPLIGATION FILED OCT. 1907,

STATES EDWARD ll. HESS, OE NnW YORK, N. Y., ASSIGNOR TO ROYAL TYPEWRITERCOB'IPANY, OF HOBOKEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

WRITING-MACHIN E Specification of Letters Patent.

Patented Aug. 17, 1909.

To all whom it may concern:

lc it known that l, Eowino B. Hass, a

citizen of the United States of America, residing in the borough ot'Brooklyn, city and citate ot New York, have invented certain new anduseful improvements in lWriting-iiiachiiies,ot which the following'is aspecitioation.

This in i'cntion comprises an organization wherein are employed stopsadapted to act either as margin stops or as tabular stops according vtotheir adjustment. Coperating with them is another stop which may belocated upon the niaiirfianie of the machine when the combined tabularand marginal stops are carried upon the carriage or upon the carriagewhen the combined mai-0in or tabular stops are carried upon the traine.its usual, the margin stop' has cooperating with it line-lock devices.

In the machine disclosed in this application, the line-lock devices arethrown into operation whenever the carriage is arrested either fortabulation or for margin. vThe combined stops are, in the constructionsliownherein, mounted to be turned about a center oi motion. li'henturned to one position their projection is such that they serve asmargin stops and when turned to another.

'position their projection is such that they serve as tabular stops.` Inaddition to these general iicaturcs there may be provided one suchcombined margin and tabular stop for each letter space ot' the machineand associated with them lor the `guidance of the operator is a scalebar which may also serve as the locking device by which the stops areheld in their normal position or in the positions to which they areadjusted. Each coinbiued margin and tabular stop is adjusted by hand,the adjustment consisting in its partial rotation merely- :'idjustuicntof the stops*longitudinally o'l thc carriage not. being-` required. Ol"course special adjustable margin stop;-A ot suitable character (-nianystyles ot' which are wcll known) may be einployed, and thc stops abovereferred to be used as tabular stops only. They are lixed with=rctercuccto their corresponding letterspaces and their number may be whatever isdesired. either one for each letter-space, o1' any lessiiiinibcr--prefcralily equally spaced.

They are independently operated directly by the hand ot the operator andwhen set or adjusted'so remain until returned to nornial inactiveposition by the hand of the operator.

In the aceoinpanyiiig drawings: Figure l is a vertical longitudinalsection showing the combined margin and tabular stops mounted upon thecarriage: Fig. 2, a rear View thereof part of the combined vmargin andtabular stops being omitted to avoid mere duplication thereof: Fig. 3, adetail perspective View showing the scale bar. combined margin andtabular stops and the bar by which they are carried and about which theymay be turned: Fig. 4, a detail perspective View showing the bar thatcarries Vthe margin tabular stops and a spacing washer thereon: Fig. 5,a detail View indicating a. combined margin. and tabular stop in themargin stop position andV a cooperating stop that has been moved out ofengagement with it: Fig. G shows a combined margin and tabular stop intabular posit-ion and a. cooperating stop in engagement therewith: Fig.T is a vertical longitudinal sect-ion showing' the combined margin andtabular stops mounted on the main f `aine orl the machine and thecooperating stop upon the carriage: Fig. 8, a rear elevation thereof:Fig. El', a detail sectional View showing` a manner in which the rackreleasedl when the tabular key is operated, the construction being amodification of that shown in Fig. 7: Fig. l() is a side elevation ofthe parts shown in Fig. E): Fig. l1 is a detail view showing a combinedtabular and margin stop mounted y on the main vtraine, in tabulatingposition and engaged by the cooperating' stop on the carriage: Fig. lf2,a similar View showing the combined stop iii-margin position and movedout ot' engagement with the coiipe ating stop on the arriage: F 13 is adetail trout elevation showing a part of the series ot' combined marginand tabular stops, their supportingl bar and the scale bar: Fig. 14 is afront elevation showing a scale, the bar upon which the margin andtabular stops are carried and three ot' the combined stops,

`two set for the marginstoj.) position at zero and 250 respectively andthe third in tabular position at 10. i "hat l have termed the copertingstop der thc streets oit itS spring being' prt acting in connection withthe series ot combined Stops would ordinarily be located in the centerof the machine when mounted on the niain iframe and at the right. handside of the, carriage when mounted on the carriage. t will, torconiaznience, he called the Jenter Stop and when so leeig'nated inclaims generic to both arraiigenients. the terni is intended to refer tothe stop whether mounted on the main trame, centrally or othernise,` orupon the :arriage at the ap jn'opriate place for it..

l is the main traine; 2 the carriage which may Shift; usual for upperand lower case printing. The printing key levers il may be of ordinarycharacter or shape. or as Shown in Fig. l. they may hare projection latthe top which overlie and operates upon the universal har 5. t'i 'iS theplaten.

"teifcrring to Figa. Vl to T---hetween the Side plates` of the carriagethere extends a rod 7 which is by preference circular except at, oneSide where it is, tlat. Fitted to turn upon this bar are combined marginand tahular 4Stops rThe only distinction between them is that thealternate ones ha ve projection?. 8 aJ their upper ends that7 when the,stops are in normal inoperative position, extend beyond the upper endsof the adjacent stopS. Ot course, the stops ma;v all he ot' the Sameshape. Fluch 'projections` on some of them are provided merely becausethe stops may he more readily .selected and manipulated by the operator.rlhe Several Stops are spaced by interposed washers S) having openingscorreQpoinling with the croSs Section otl bar 7, so as not to turn. lntheir front; edges, the stops are toi-ined with uniform curved recesl esradial to their axes and of equal radius. When in normal or operativepofsition, the central recesfs4 S: ot each Stop is turned to the frontand is oecupied by a spring pressed bar tt) cari-yin;l upon its uppertace a scale l1. 'l`he tace o't' this bar in contact with the Series oit:stops is preferalily termed with converging taees i2 and 13. The bar ismounted in the endeI ot' rockii'igl arm lfldrawn against th(l lserieso't stops by coiled Springs 15 that may be attached to pins lti in theside plates ol the carriage. The-Spring` pressure of the har is such asto aline or bring into symmetrical order the entire series ot stops andthe scale is so adjusted with reference to the, stops that each divisionthereon indicatingl a letter apace is opposite one ot the adjustablestops. l'lf' one ot the stops is to he used lor tahnlatr ing', it ismoved into the position shown in Fig'. (l, its lower end (which is oljless radius than the upper end) being projected. lnring itS movement. itwill 'torce back the/ba lt) which will return to normal position unisedinto the recesses 8* o'tI the remaiinlerot the Stops and into the recessS of the adjusted Stop.

ltion.

'iimilarlj'. it the stop to he used tor mar lLin. it irs4 thrown intothe position indicated in Fig. 5 its` upper end ot `:greater radins heAin g projected. rl`he prensnre bar will oecuj the ieee` s S ot that stopand hohl it in posi- This series o't' tops may extend en tirely acrossthe carriage and. il: desired. onel stop'prorided toi' each letterspace.

)io-.inted upon the main trame in rear ot the bar T is: a eoperatine orcentral stopl7 pivoted at 1S upon an axis parallel with that. o'l: theplaten and haringy in its. lower end a eros#y pin l5) occnpyine thebitnrcated end ol. an :.rm it) on a rock .ahat't fil and held in normalor vertical position by oppositely acting plate springs 2Q, i213 holtedto the traine. .\t the right, hand end bt this rack shatt theril is anupright radial arm 2st trom which extends a link to a central downwardprojection 25' on a horizontally dis posed lever 27 pivotedinterniediate its. ends which are npturned and enuipped with ingjerpieces. one marked Margin tor margin release and the other l`ahulatoi"'for tabnlating.

(ln the side ol the upper end ot the central stop or lever t7 ispiroted. upon an axis 2% at rigght angl i o axis i8, a plate itl haring`a do\\n\\';.rdly extending' arm il() connected to which is connected alink El extending to the .side olE the machine and ajiplied to a crankarin 32 on a vertical shat't l-'t haring a crank 35 at its lower end towhich is attached a iii'wardly extending link Bti connected toannpnardly extending radial arm :E7 (normally drawn to the t'ront bycoiled spring;l rr) upon a rock shatt Si) that carrieS a line lock plate40 adapted to pass under projections lt on the lower edges ot' all otthe printing key levers when arm 57 is drawn rearwardly. In this waywhen the pivoted plate 2S) comes in contact with a margin or tabularstop it rocks about. its axis until aria sted by the upper end ot lever17 and duriop)a its movements the line-lock plate 10 is drawn under allof the printing,` key levers. 'lhis operation will occur whenever 'theearriae'e is arrested by a margin or tabular stop.

'l'he `eneral arrangtanent. comprising the printing keys and 37, 4t),3G, Bl and QS); and the genera] arrangement of stop lever i7; and alsothe general arrangement ot a eentrally disposed Stop lever 17 andcoiiperatiiif;` parta Qt). 2? and 24. link and rocking lever 27 all inconnection with a talntlatingr system are shown in my application tiled)lay l5` lfitli, No. 5373.549.

ln order that the rack 4t2 may be thrown ont;- ot engagement with thecscapement wheel pinion 4S when the carriage is to be 'jumped 'fortabulation there is formed on lever vt7 a. forward projection il-tcarrying an adjustable eccentric piece 45 that works upon an inclinedface ot' a pivotedlever 4G carrying in its other end a pad 47 that works.thrust is imparted' to the rodi9i5 which opearr-iage. The scale l1 andits bar l0 is new ling front and back troni the transverse plateagainstthennder side of a horizontal iange formed with the rack. Therack is carried in arms L8 pivoted at 49 and having applied to 'themsprings 50.-- llllhen, therefore, the carriage isito be jumped fortabulation by depression of the tabular key a rearward erstes to carrythe upper end el. the lever 1T inwardly to engage the tabular stops andduring the `latter part. of this movement the part. acting upon leverith litts the rack ont of engagement with its pinion and permits thevjurnp of the ei'irriape. When the carriage is arrested by a marginstop, it may be released by deinession ol the )nai-gin ringer piece thearrangement being sueli that. when that key is fully depressed therear-- ward movement ot' lever 1T will he su'llieient to Carry it out ofengagement with the inary gin stop which has a greater rearwardprojection frein shaft 7 than has a tabular stop.

-So far as l am aware, it is new to provide a combined stop for bothiiiarggjin and tabular use and a cooperating or center stop. It is alsonovel so far' as l ain aware to provide a seriesl oit stops that may beor are capable of use only as tabulator stops there being one such stopfor each 'of la. series of line spaces: and by making such stops servealso as n-iargin stops, the utmost, range of adjustinent of printedniatter upon the sheetis feasible.

Figs. Sto 13 inclusive show an ore'ai'iination o this invention in whichthe adjustiable combined stops are niounted upon the main frame theeoperating stop or soealled center stop being ci rried by the earriage.The arrangement of bar 7 of the combined stops S and spacing washersupon the bar are the saine as beore dei scribed. The bar however iscarried by vers tically disposed arins 5l, 51, pivoted to rocktransversely of tlieniar-hine in a plate 52 shown L-shape in crosssection and arranged transversely o't the machine and adapted to rockabout an axis 53. The co# operating; ,stop or so-ealled center stop inthis eonstruuetion is marked 54. and rigidly mounted upon one ot' thecross rails of the l l i fl i l placed in rear of the series or combinedstops being mounted as before in. arins Ll pivoted, in 'this easehowever, at 54 in the side plates of the main frame and drawn forwardlybyy spiral springs It now becoin'es neoessary, however, to more theseriesI of stops into and outy of position to engage the roiiperatingstop. This niay be con if'eniently'accomplished as follows: Projeeti 52are arins 55, 5G, to which Aare applied coiled springs 5(3,55', thattend to hold the parts in normal `Central position. link 57 extendsdownwardly from 'the forwardly tending part 56 to a pivoted arin, 58Jfrom i tio abuis iioaiiist sto'i inns titl.

s l i engages the horizontal torwardly pro' which there extends, downtardly, a link :'39 to the tabulator kej)v tit). From the rearwardlyevteiidii'ig part 55 olI the roi-king transverse traine extendsdownwardly a link (il to a margin release lever (S2, seen in the rea rview Fig. ,8, and lying;` behind or beyond lthe tabular keiY (SO shownin side elevation.`

. seapoinent pinion is uiarked lt is engaged at the bottoni by the rack(2l which at eaeh end is foriiied with a Ytorwardly extending' rightangle tlang'e 55 to which are pivoted the :ear ends ot a pair o'lHparallel links (3.3, tt. These pairs ot :irnis are pivoted upon downwardextensions troni the side plates ot' the rai'riage and are drawnupwardlyY by sprir" (5T until the side flanges liliese springs thereforeserre to hold the raok in rnlt'agenieut with the pinion.v

.in Fig'. 'i' one ot the adjiistable stops inail-:ed iw" is shown :isadjuz-*tted Jfor ini i' arrest and :is standing in tinl path olt the rooperating' stop fil earried by the carriage. To rele: se the rarriage'troni suoli a niaio'iu stop, the margin release key is depressed,li'aniiig` link lll downwardly and .rockingl the transrerse traine ."2about its axis 53 in a direction to cai-rj.'v the rertieally disposedarins fil rearwardly to niore the margin stop s out oi" the path or thei'oiperatingr stop and perniii' the printing` ol. additional eharaciers.

in Fig. i'. one o" the eonibined adjustable stops .iiiiirkeifl lll isser lor tabulation and when so set stands normally. outy ot the path ofthe t iperatingg or renter stop ill. ll'hen the failr @je is to bejumped for tabulation, key (il) is dopresseil, tlie eti'eet being todraw down link 5T and rook the vertically disposed arnis 5l t'oiwvard tobring; the tabulalor stop H" into the path of the carriage stop 5l toarrest. the carriage at the required printine' spare. Release ot' theeseapeuient required V t'oi' this operation niay 4be aeeoiw plislied asl'ollows: liheii a: tabular key o() (Figs. T and 8) is niored downward,link 59 Carries down the pivoted arni tl which in. turn draws down link37. Vl u the downward movement of :irni 5S' ii roller (itl carried bythe hori.'/iontall`\,v disposed upper end thereof, yeetiug tla tl atythe bottoniof'raek (il and draws the rack downwardly against the tensionof springs (ifi. 'llie are described by thel lend fare of flange l5!) aVtrietion pad till attaelied tuo the under fare ot a laterallypi'ojeiting *horizontally disposed llanre at the upper 'end'ol the arni.f-wliirli pad :iets as a brake to siitlieieiitlj.' retard the run orjump of the carriage when released troni the eseapeinent device. hevertieally disposed ariiis 5l e Y. l" Carrying the shalt i are pirotedat, i0 on the side ot the rorking' transverse angle plate upon axes :itright angles to the of arni brings into ('ontiirt `with tlie upper lOOisov

axis ot shaft 7. A. coiled spring 71 applied to one of these arms tendsby its reaction to hold the sha'it't T against an adjustable stop T2mounted in the right hand side. plate oi the inain traine.

lihen one of the adjustable stops is engaged by the carriage stop, theaction that occurs is analogous to that which happens when the pivotedplate 2f) is struck by one oi' the stops illustrated in Fig. 1,-that isto say, the verti-ally disposed arms 51 rook slightly carryingl shaft 7toward the lett hand side olt the machine until arrested by an:nljusiahle stop Til mounted in the lett hand side plate ot the niainitralne. Arm 5i attached to sha't't 7 at its lett hand end has at itsbottom a horizontal crank projection 'It to which is attached adownwardly eX- teuding link 75 connected at its lower end to the shorthorizontally disposed end 76 ot' a bell crank lever the downwardly eX-tending arm 7T ot' which has attached to it a torwardly extending` linkTS that is conneeted with one ot the rocker arms 37 so that theline-lock plate 4() is carried under the jn'ojections 41 on the underedges of the printing` levers whenever the cooperating stop 5t contactswith any one ot the car riaee, stops.

Ot course, the arms 5l. are pivotally connected with the shatt. Theconstruction that is preferred as to this detail is that indicated inFigs. 11 and i12 in which the upper ends ot the arms 51 are bitnrcatedas at 51, 51,the pivotal connection beingl alorded by screw pivot bolt512 seen in Fig. 8 but omitted in Figs. 1l and 12 for clearness ofillustration of the parts shown in those figures.

In the constructimi shown in Fips. 9 and l() there is a link 57 running'directly from the extension 56 ot' the rocking frame 52 to the tabnlatorkey ttt) and a link 59 extending` upwardly from that key to therocking;V arm 58. 'l`he operation, however, is the same as th: t alreadydescribed in respect.- to the disenagementY ot the rack trom theescapement pinion.

lln the wnstruetion shown in Figs. 7 and H. the link 57 is threaded atits lower end and passes through an aperture in a lateral plate58 on theside ot the arm AdjustingrV nuts are applied to the threaded end ot thelink above and below this plate.

in the construction shown in Figs. 8 and t), the link 59- has a threadedend which passes upwardly throupjl'i an aperture in the plate or Bange58 and has applied to its upper end suitable nuts; but in theconstruction shown in Figs. 9 and 1() there is also a nu`t or collar 59applied to the thrviaded end ot the link below the plate 5S in order tomaintain in normal elevated position the rocking?r arm 5S. lt desired.and as shown in Fig. 10, the normal upper position ot arm 58 may bedetermined by an adjustable ec centric stop 79 mounted in the end of anarm projecting inwardly from the side plate of the frame.

In the construction shown in Fig. 7, provision is made as usual forshifting the carriage. lVhen, however, the carriage is elevated, rollerG8. mounted on the arm 5S, prevents the teeth ot the rack from bottomingin the grooves between the teeth of the escape wheel, and the adjustmentof parts is preferably such that the relation of the rock teeth'to theteeth ot the escape pinion shall be the saine whether the carriage is innormal or in elevated position.

Above the keyboard and in line above the tabulator key t3() is ahorizontally disposed key or push pin St) connected iat its inner endvwith a lever S1 pivoted intermediate its ends and carrying' at itslower free end a roller S2 adapted to bear upon and depress thetabulator key (it). Referring to Fig. 14, by ray of illustration, twomargin stops are shownffsone, set at- O, the other at 80; andintermediate them, set at 10, is a tabular stop to be used forparagraphing. By Operating the paragraphing key 80, the tabular key maybe depressed to such extent as not to disengage the rack trom theescapement pinion but su'l'liciently to bring the tabulator stop set atinto position to be engaged by the center stop 54. By using the ordinaryspace lever, the carriage may be run step by step (so long as the fingerot the ope lator is held on the paragraph key) until arrested by thetabulator stop at 10, that being the position selected tor commencingthe para- `graph. Vtthen the cooperating or center stop is moved withthe carriage and the adjustable combined stops are mounted on the mainframe, the scale as indicated in Fig. 13 should read from right tolett'.

As shown in Fig. 8, the escape wheel 83 is connected to turn in onedirection with the pinion (33 and the 4pinion is free to revolve in theother direction without movement of the escapement wheel. This is anoperation lcommon in typewritine machines. ln the present instance,however, the pinion G?) is locked to escape wheel` in one direction ofmovement by pivoted spring controlled dogs SLL having teeth 85 that aredrawn into the spaces between the teeth of the pinion "the teeth S5being;` rounded or beveled upon one tace and nat upon the other. Thisconstruetion is believed to be more positive in action andmoresubstantial in construction than the devices that have heretoforebeen used tor this purpose.

While there has been described a series of stops one tor each letterspace,vor one for each olE a series ot consecutive letter spaces, it is.otl course, obvious that there might be a stop t'or every other oralternate letter space; or one tor every third letter space;

and that these stops may be mounted in lined relation to theircorresponding letter spaces. Such an arrangement would afford a suitablerange fortabular Work and also for margin arrest of the carriage. In thespecial. torni of the invention shown in the drawings, the rotatablestops may each readily be mounted upon the shatt 7 so as to rotatethereon but be prevented from moving endwise.

While rotarjr stops having each parts oi' diierent. radius or elevationone to act as a tabular stop and the other as a-margin stop arepreferred on account of the simplicity of construction and facility ofadjustment and are therefore dfmned mostpracticable, t-he invention isno in its broader aspects limited to rotatable es Se far as I am aware,provide a stop capabley of dilferent degrees of projection from a normalposition of inaction, so as to serve in one position or extent ofprojection as a tabular stop and in another position or extent ot'projection as a margin stop. Thus broadly considered the invention isnot limited to the special. style and mounting of stops hereindisclosed. Also, so far as l am aware, l am the first to provide aplurality et stops occupying fixed positions with respect tocorresponding letter spaces of the machine and capable of use as tabularstopsTy irrespective of their use as margin stops and whether or notsuch plurality or series ol stops contains one stop t'or each letterspace., or stops corresponding with consecutive letter spaces. ilnderpractical condition of working it is feasible to dispense with some o'ithe tabular stops at each end of the serirsfethat is to say, withrespect both to the beginning und cnil ot the line oi print.

l claim:

l. A. carriage stop device having two stop surfaces and adaptedto'oecupy two positions in one of which one of said surfaces serves asiatabular stop and in the other of which the other surface serves as amargin stop.

2. carriage stop device adapted to oeeupy two positions in one of whichit serves as a tabular stop and inthe other as a margin stop anda-coperating center stop.

3. An adjustablev rotatable carriage stop device adapted to occupy twopositions, in one of which it serves as a tabular stop and in the otheras a marginstop and a coperating center stop.

fl. A carriage stop device consisting of an adjustable rotatable memberhaving parts ot' different radins one serving as a tabular stop and theother as a n'largin stop and a coperating center stop.

5. A series ot adjustable stops each capable of mljnstment to onepositlon to actas l am the rst to a tabular stop and' to anotherposition to act as a margin stop said series coiitaining stop for eaehof a consecutive series et' letter spaces and a cooperating stop.

6. A series of adjustable stops each ce pable of adjustment to roneposition to act as a tabular stop and -to another position to act amargin stop said series containing a stop for each ot' a consecutiveseries of letter spaces and being mounted inned relation to such letterspaces and a cooperating step.

Aseries of adjustable stops, a oar upon which they are mounted torota-te, each stop capable of adjustment to two positions in one ofwhich it acts as a tabular stop and in the other as a margin stop andnon-rotary space pieces mounted upon the bar between, adjacent stops andcoperatintt stop.

8. A series of tabular stops, a bar upon which they are mounted torotate, the several stops having each corresponding positioningsurfaces, a spring pressed positioning bar bearing upon correspondingsurfaces of the stops in normal inactive posiJ tion and acting tocorrespondingly hold .some of the stops, when adjusted, to tabularposition and a cooperating center stop.

9. A series ot' combined tabular and man gin stops, a bar upon whichthey are mounted to rotate, the several stops having three correspondingpositioniiig surfaces and a' spring pressed positioning bar acting tohold 1n position those stops that are in normal posltion and also suchot the stops as may lbe adjusted to tabular position and such as may beadjusted to margin position and a cooperating center stop.

l0. A. carriage stop device adapted to oecupy two positions in one olwhich it serres as a tabular stop and in thc other as a inargin stop, acooperating center stop and linclock devices thrown into operationwhenever such cent-er stop engages a tabular or mar gin stop.

11. An adjustable rotatable carriage stop device adapted to occupy twopositions, in one oi' which it serves as a tabular stop and in the otheras a margin stop, a cooperating center stop and lineloclr device throwninto operation whenever such center stop engages a tabular or marginstop.

l2. A carriage stop device consisting of an adjustable rotatable memberhaving parts of different radius one serving as a tabular stop and theother as a margin sto a eooperating center stop and line-lock devicesthrown into operation whenever such center stop engages a tabular ormargin stop.

13. A series of'adjustable stops 'each capa ble ot' adjustment to oneposition to act as a tabular stop and to another position to act as amargin stop said series containing a stop tor each of a consecutiveseries otl letter spaces, a cooperating center stop and line lockdevices thrown into operation whenever such center stop engages atabular or margin stop.

llt. A series ot adjustable stops each capable of adjustment to oneposition to act as a tabular stop and to another position to act as amargin stop said series containing a stop for each ot' a consecutiveseries ot letter spaces and being mounted in tixetl rch tion to suchletter spaces, a cooperating center stop and line loclr devices throwninto operation whenever such center stop engages a tabular or marginstop.

l5. A series of tabular stops. a bar upon which they are mounted torotate tor adjustment and non-rotary space pieces inten posed betweenadjacent stops, a coperating center stop and line locl; devices throwninto operation whenever such center stop engages a tabular stop.

16. A series of adjustable stops, a bar upon which they are mounted torotate, each stop capable ot' adjustment to two po sitions in one ofwhich it acts as a tabular stop and in the other as a margin stop andnon-rotary space pieces mounted upon the bar between adjacent stops, acoopera-ting center stop and line lock devices thrown into operationwhenever such center stop engages a tabular or margin stop.

17. A series of tabular stops, a.bar upon Whieh'they are mounted torotate, the several stops having each corresponding positioningsurfaces, a spring pressed positioning bar bearing upon correspondingsurfaces of the stops in normal inactive position and acting tocorrespondingly hold some of the stops7 when adjusted, to tabularposition. a cooperating center stop and line lock devices thrown intooperation whenever such centerstop engages a tabular or margin stop.

18. A series ot adjustable, combined stops each adapted when adjusted toone position to serve as a tabular stop and when adjusted to anotherposition to serve as a margin stop such series ot' stops being mountedin fixed relation to corresponding letter spaces, a co'iperating centerstop and coperating line lock devices.

l5). A series of adjustable combined stops each adapted when adjusted toone position to serve as a tabular stop and when adjusted to anotherposition to serve as a margin stop such series ot stops being mounted infixed relation to correspondin;l letter spaces and meansI common to allthe stops lor holding the series ot stopsl inthe positions which theseveral stops olf `the series may occupy.

2t). writingl machine comprising a shiltu able carriage. adjustabletabulator stops' mounted on the main l'i'ztme. a cot'iperating stopmounted on thc carriage. a rotlting trame on which the tabular stops arecarried, springs acting to maintain said 'frame in normal positionameans tor roehing the ktrame to bring a tabulattni stop carried therebyinto position to be engaged by the cooperating stop on the carriage arack and cseapeinent pinion. means tor disengaging them during therocking ol said trame and means tor maintaining unitorm engagement o'tthe rack and pinion irrespective ofthe shitting ot the carriage.

2l. A writing machine comprising a shiftable carriage7 tabulatordevices, a rack pivotally mounted on the carriage, means Ytorwithdrawing` the rack trom the pinion when the carriage is jumped fortabulation, said means serving also when the carriage is shifted topreserve the normal relation of the rack andpinion.

writing machine comprising tabulating devices operated by a tabular hey,means acting on depression ot the key to disengage the rack from theescapement pinion and permit jump ot the carriage tor tabulation, and aparagraphing lrey acting upon the tabular key to partially depress it tosuch extent as to cause engagement ot the tabulating stops but. notsuthciently to disengage the rack and pinion whereby a paragraphposition may be reached by the operation of `the ordinary space key.

lit a typewriting machine having tabusti lating devices and a shiftingcarriage, spring l supported parallel links pivoted to the carringe. andcarrying the rack, and means for withdrawing the rack from the pinion topermit jump ot the carriage in tabnlating, said means acting as a stopto prevent deeper entrance of the rack intothe spaces of the escapewheel when the carriage is shifted troni normal position.

Qt. ln a writing` machine a series of tabulating stops carried by themain trame and mounted 'to inove transversely of the machine, acoiiperating stop carried by the carriage and adapted to engage thetabular Vstops to arrest the carriage and move the series et stopstransversely ot' the machine and line loclr devices thrown intooperation by such transverse movement ot' thev series ot tabular stops.

#i ser ot adjustable tabular' stops mounted in'tixed relation to aseries of eor responding letter spaces7 the stops being adapted to beindependently moved, from inactive to active position and vice versatliret'etly by the hand ot the operator, a eooperating stop.l and linelock devices thrown into operation whenever the cooperating stop and anyone ot the tabular stops are engaged.

1o. tt series ot combined tabular and inargin stops, a bar upon whichthey are mounted to rotate, the several stops having three correspondingpositioning st'trl'aces and a spring pressed positioning bar acting tohold in rio ' a i i position those stops that are 1n normal posi tionand also such of the stops as may be adjusted to tabular position andsuch may toe adjusted to margin position, :i coperat- 5 ing Center stopand line look devices thrown i into operation Whenever Such center Stopengages a tabular or margin stop.

In @estimony whereof, l have hereunto subscribed my name.

i IEDWARD B HESS.

ViUiesses: JOHN M. LEE, L. F. BRov/NING.

